Photo flushing size Problems

Source: Internet
Author: User
Tags comparison table
1. Common dimensions

The size is several inches in centimeters.
Inch 2.5x3.6 1x1. 4 inch
3.4x5.2 1.5x2
Three-inch 5.5x8.4 2.25x3.25 inch
8.3x12.7 3.25x5
6-inch 10.1x15.2 4-inch
7-inch 12.7x17.8/
8-inch 15.2x20.3 6x8-inch
10-inch 20.3x25.4 8x10-inch
12-inch 25.4x30.5 10x12-inch
Fourteen-inch 28.0x35.6 11x14-inch
16-inch 30.5x40.6
18-inch 35.6x45.8 14x18-inch
18 inches or less shall prevail, and 20 inches or more shall prevail. Note: 1 inch = 2.54 cm
20-inch 40x50 cm
24-inch 50x60 cm
30-inch 60x75 cm
Inch 60x80 cm
36 inch 60x90 cm
40-inch 70x100
Forty-eight-inch 90x120
100x115
112x170

2.5x 3 inch is generally called 3-inch, also called "Palm treasure" or "wallet photo ";
3.5x 5 inch 3R, generally called 5-inch;
4x 6 inch 4R, usually 6-inch
5x 7 inch 5R, usually 7-inch;
6x 8 inch 6R, generally called 8-inch;
7X 10 inch 7R, usually 10 inch;
8x10 inch is the type of 20x25 cm that is often required by the competition;
10x12 inch is also a common size;
14 inch x is the size of the photo album installed in the photo studio;
12x16 inch General 135 negative film magnified size, complete composition;
16x 20 inch is the ultimate size of 135 negatives. If it is larger, it is "barely;
20x 24 inch is the most magnified size for the photo studio.

Note:

The digital photos we have taken are generally not of the standard size. The images taken with a digital camera are generally set at the resolution of the computer screen, therefore, the ratio is basically 4: 3, and the size ratio of the standard photo is different. For example, the ratio of the 5-inch photo is 10: 7, and the size of the 6-inch photo is 3: 2, if you do not crop the image, the image is usually left with white edges or incomplete. Therefore, we must use software to crop images.

Table 1: common standard photo specifications Table 2: Digital Photo Printing Quality Comparison Table film quality: can maintain the best effect of the original photo. Excellent: we can see that the pixel is not enough to slightly affect the photo quality, but it does not affect the quality of the photo. We can achieve an ideal printing effect. Good: The effects of pixels on photos are obvious, but the printing effect is still satisfactory. GENERAL: insufficient pixels have obvious effects on the photos, but the photos can still be used. 1 inch = 2.54 cm, we say that the size of the photo is usually in inches. The standard size of the Photo size is within 10 inches. For example, the size of a 5-inch photo is 5x3, 7-inch = 7x5 8-inch = 8x6. If the Photo size is greater than 10, the difference is 4, 12-inch = 12x8 14-inch = 14x10 18-inch = 18x14.

2. Size of common documents

1 inch 25mm × 35mm
2 inch 35mm × 49mm
3 inch 35mm × 52mm
Hong Kong and Macao pass 33mm × 48mm
US visa 50mm × 50mm
Japanese Visa 45mm × 45mm
Large 2-inch 35mm × 45mm
Passport 33mm × 48mm
Graduates Take 33mm × 48mm
ID card 22mm × 32mm
Driver's license: 21mm × 26mm
Car photos 60mm × 91mm

 
1 inch 2.5*3.5 413*295
ID card photo 3.3*2.2 390*260
2-inch 3.5*5.3 626*413
Small 2-inch (passport) 4.8*3.3 cm 567*390
5-inch 5x3.5 12.7*8.9 pixel x840 + 1 million pixels
6-inch 6x4 15.2*10.2 1440x960 + 1.3 million pixels
7-inch 7x5 17.8*12.7 1680x1200 + 2 million pixels
8-inch 8x6 20.3*15.2 1920x1440 + 3 million pixels
10 inch 10x8 25.4*20.3 2400x1920 + 4 million pixels
12-inch 12x10 30.5*20.3 2500x2000 + 5 million pixels
15-inch 15x10 38.1*25.4 3000x2000 6 million pixels
  
In addition, the number of pixels for digital films is several million. They only look at the number of long-edges, 1200 out of 5.
1400 to 6, 1700 to 7, and so on...
  
1 inch (inch) = 2.54
The X-inch is the long side of the photo. For example, a 5-inch image is 2.54x5 = 12.7.
12-inch is 2.54x12 = 30.5,
8x12 means the long side is 2.54x12 = 30.5, the short side is 2.54x8 = 20.3
  
3R refers to paper, 3R is 89mm, 5R is 127mm
Generally, 3x5 means 5x5 R means 5x7 means 7.
  
R indicates the rectangular shape (rectangle in English), which is calculated by the shortest side.

3. maximum size of digital cameras and printable photos
5 million pixels valid 4915200, pixels 2560x1920. Portable Photo size 17X13, diagonal 21 inch
4 million pixels valid 3871488, pixels 2272x1704. Portable Photo size: 15x11, diagonal line: 19 inch
3 million pixels valid 3145728, pixels 2048x1536. Portable Photo size: 14x10, diagonal line: 17 inch
2 million pixels valid 1920000, pixels 1600x1200. Portable Photo size: 11x8, diagonal line: 13 inch
1.3 million pixels valid 1228800, pixels 1280x960. Washable Photo size 9x6, diagonal 11 inch
0.8 million pixels valid 786432, pixels 1024x768. Washable Photo size 7x5, diagonal 9 inch
0.5 million pixels valid 480000, pixels 800x600. Washable Photo size 5x4, diagonal 7 inch
0.3 million pixels valid 307200, pixels 640x480. Portable Photo size: 4x3, diagonal line: 5 inch
Therefore:
5-inch photo (3x5) with X resolution
6-inch photo (4x6) with X resolution
7-inch photo (5x7) with X resolution
8-inch photo (6x8) with 1280x960 resolution

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